Automatic blow-off device for condensation-water.



No. 834,286. PATENTED our. 30, 1906.

L.-PONDU.

AUTOMATIC BLOW-OFF DEVICE FOR GONDENSATION WATER.

APPLICATION FILED 1mg. 5, 1905.

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' No. 834,286. PATENTED OCT. so, 1906.

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AUTOMATIG BLOW-OPP DEVICE ronconnnusnmn WATER.

-. APPLICATION FILED D30. 5. 1906.

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LEoNFoNDU, OF CHAPELLE-LEZI-HERLAIMON, BELGIUM.

AUTOMATIC BLOW-OFF DEVICE FOR CONDENSATION-WATER.

Specification of Letters Patent.

Patented Oct. so, 1906.

Application filed Decemberi, 1905. Serial No. 290,408.

To all whom, it may concern:

Automatic Blow-Off Devices for Oondensation-Water; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had. to the accompanying drawings, and to letters of reference marked therein, which form a part of this specification.

'The' present invention relates to an improved automatic blow-off device having for its object to automatically blow off the water resulting from condensation in steam-pipes.

Some executory forms of the present inyention are represented in the annexed drawlngs.

Figure Irepresents a section of such a device in which the overflow-valve is actuated by a piston. Fig. II represents a section through a similar device in which the piston is replaced by a diaphragm. Figs. III, IV, and V are several forms of the diaphragm. Fig. VI represents another form of the device.

The blow- 0H apparatus is connected to a blow-off pipe T by means of two pipes T and one of which ends at the lower art, the other one at the upper part, of a cy inder A, having a lid B. In this cylinder is placed the bell proper or piston O, which can move in the cylinder with a certain play, owing to packing-rings. The movements of this piston are guided by means of wings and of a tail. The piston opens or closes the openings 0, made in a crown placed on the upper part of the cylinder, according to the position it occupies. These openings communicate with an annular channel which ends in the discharge-pipe F. The bell or piston is extended outslde of the cylinder by a rod G, provided with a handle H, which allows to a work the said' piston by hand, The pipe T is closed at its lower end by a plug I, which may be taken off for inspection. It will be seen that this tube T connects the dischargepipe F with the lower face of the piston, while the pipe T connects the upper face to the discharge-pi e. The flared form of the bell allows to co lect the mud.

As the device will not work unless the pipe T be normally filled with water, it is necessary when starting it the first time to fill this pipe with water either by hand or by allowing the condensation to take place, in which case the piston will have to be kept lifted by means of the handle H. It will also have to be pointed out that as long as the pipe T is not full the water fed by T (which arrives in drops) will fall directly into T and that not a drop will fall into T.

Supposing the pipe T is full of water up to the point where the pipe T is embranched,:,-:

the height of this pipe is established in such a way that the pressure which this water column exerts on the lower face of the piston C is higher than the weight of the piston itself and that the piston is lifted and closes the openings 0. If condensation-water I is then introduced through the pipe T, this wa ter cannot enter any longer the pipe T which is full. It consequently escapes through T, which it fills by and by. When this pipe T is full, (or nearly $0,) the charges of water on the two faces ofthe pistonare equal. Under these circumstances the action of theweight becomes preponderant, so that the piston falls back and allows the water contained in the pipe T to escape through the openings 0. As soon as the pipe T is empty the piston is lifted again under the action of the pressure exerted by the water contained in T, and so on.

In the executory form represented in Fig. II the piston has been replaced by a diaphragm B, which controls the position of a valve mounted on the discharge-opening. The lower face of the diaphragm is constantly exposed to a determined charge, while the upper face is alternatel exposed to a water column either equal to the former or ml. The combination of the charges on the upper face with the constant charge on the lower face will determine the movement of the diaphragm with its valve. This diaphragm B is preferably formed by means of several sheet-metal rings linked to each other, which assures a great. tightness and perfect elasticity. i

The diaphragm B is lifted by a valve 0, placed on the discharge-opening. The valve may be provided with a rod having a handle in order to be worked by hand, if necessary.

The pipe T connects the discharge-pipe'T with the lower surface of the diaphragm B, while the pipe T assures the communication with the upper face. The inner sheet D allows to easily collect the impurities which IIO forms of the diaphragm.

I Fi VI represents another form of the device m which the diaphragm B is placed on the counterweight E.

The operation is thesame as with the other constructional forms.

. Havingv now fully described my invention, what I claim is 1. In a steam-tra the combination of a trap-shell, means adhpted to conta n a hydrostatic column communicating with said shell, an inlet-openin in the bottom part of the trap-shell, an in et-opening in the top part of the shell, a piston, means for guiding the piston, outlet-openings in the top of the shell,'and a discharge-pipe.

' 2. In a steam-trap, the combination of a trap-shell, means adapted to contain a hydrostatic column communicating with said shell, an inlet-openin in the bottom art of the trap-shell, an in et-opening in te top part ofthe shell, a piston, means for guiding the piston, an outlet-opening in the upper part of the shell, a discharge-pipe, a rod con.-

nected to the top of the iston and rejecting through the top of the s 1e11, and a iandle on the projecting end of the rod.

3. In a steam-tra the combination of a trap-shell, means a apted to contain a hydrostatic column communicating with said shell, an inlet-opening in the bottom part of the shell, a metallic diaphra m, a valve supported on the diaphragm an having a valverod, a weight on thedia hragm surrounding the valve-rod, a mud-col ecting roof over the Weight, a lateral inlet-opening in the upper part of the shell, a valve-seat in the center of the top of the shell, and a discharge-pipe above the seat of the valve.

4. In a steam-trap, the combination of; the trap-shell, means adapted to contain a hydrostatic column communicating with said shell, an inlet-o ening in the bottom part of the shell, an in et-openin in the to of the shell, a diaphragm in the s 1e11, a weig 1t fixed to the under suriace of the dia )hragm, a valve supported on the said weight, a mudcollecting roof on the diaphragm, a valveseat in the top of the shell, and a dischargepige communicating with the valve-seat.

n testimony that I claim the foregoing as my invention I have signed my name in presence of two subscribing witnesses.

LEON FONDU.

Witnesses:

JOSEPH DALLONS, IJERMIGNCOUR CORY. 

